| 83 | } |
| 84 | |
| 85 | static void make_mask(char *mask, int plen, int addrlen) |
| 86 | { |
| 87 | int w, b; |
| 88 | |
| 89 | w = plen >> 3; |
| 90 | b = plen & 0x7; |
| 91 | |
| 92 | if (w) |
| 93 | memset(mask, 0xff, w); |
| 94 | if (w < addrlen) |
| 95 | mask[w] = 0xff & (0xff<<(8-b)); |
| 96 | if (w+1 < addrlen) |
| 97 | memset(mask+w+1, 0, addrlen-w-1); |
| 98 | |
| 99 | return; |
| 100 | } |
| 101 | |
| 102 | static int match_address(const char *addr, char *tok) |
| 103 | { |